中国科学院机构知识库网格系统: 检索

Development of a novel end-effector for an on-orbit robotic refueling mission 期刊论文 OAI收割
IEEE Access, 2020, 卷号: 8, 页码: 17762-17778
作者: Liu JG(刘金国); Tong YC(佟玉闯); Liu YJ(刘云军); Liu YW(刘玉旺)

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收藏 | 浏览/下载：37/0 | 提交时间：2020/03/08

On-orbit servicing robotic refueling mission end-effector imitating human hand collision dynamics analysis

Fabrication of polycrystalline diamond tools by micro electrodischarge machining (EI CONFERENCE) 会议论文 OAI收割
8th CHINA-JAPAN International Conference on Ultra-Precision Machining, CJUPM 2011, November 20, 2011 - November 22, 2011, Hangzhou City, China
Zhang Z.; Peng H.; Yan J.; Kuriyagawa T.

收藏 | 浏览/下载：96/0 | 提交时间：2013/03/25

There is an increasingly growing demand for fabrication of micro-structured surfaces such as micro lens arrays and micro prism arrays. Micro end milling is one of the most efficient machining technologies for fabricating these microstructures. In this paper micro electrodischarge machining (EDM) was applied to fabricate single flute micro end mills on polycrystalline diamond (PCD). Using the fabricated end mills micro end milling tests of dimple arrays were performed on tungsten carbide (WC) molds and the machining characteristics were investigated. (2012) Trans Tech Publications.

Evaluation of the operating range for ground-based infrared imaging tracking system (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者: Zhang Z.-D.

收藏 | 浏览/下载：48/0 | 提交时间：2013/03/25

Ground-based infrared imaging tracking system (GIITS) is of great importance for aerial target warning and guard. The operating range is one of the key performance specifications on the other which should be calculated calculate the radiation power received on the detector in order to analysis whether the output signal meets the detection requirements or not analyzed and studied during the whole GIITS design process. The operating range is mostly influenced by a few factors without considering the effect of the background radiation. By improving of the traditional method including atmospheric attenuation a new operating range calculation model of the GIITS was established based on two requirements. One is that the image size of observed target should meet the requirement of the processor signal extraction. The number of the pixel occupied by target image should be more than 9. The other is that the signal noise ratio (SNR) of the GIITS should not be less than 5 to meet the requirements of the target detection probability and spatial frequency. The SNR calculation equation in form of energy is deduced and the radiation characteristic of the observed target and background are analyzed. When evaluate the operating range of the GIITS using the new method the performance of GIITS and feature of target and background. This paper firstly makes analysis and summarization on the definite localizations of the traditional operating range equation of the GIITS. The localizations are mainly in two aspects. On one hand we should successively calculate two operating range values according to two requirements mentioned above and choose the minimum value as the analytic result. In the end the dispersion of the image and the effect of image dispersion are not considered in the traditional method an evaluation of operating range for fighter aircraft is accomplished as an example. The influence factors in every aspect on operating range were explored by the calculated result. The new operating range calculation model provides the theoretical basis for the design and applications as well as the comprehensive evaluation of a GIITS. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Design of data transmission speed for small high resolution satellite (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Transportation, Mechanical, and Electrical Engineering, TMEE 2011, December 16, 2011 - December 18, 2011, Changchun, China
Wang S.; Jin G.

收藏 | 浏览/下载：22/0 | 提交时间：2013/03/25

The particular data-transmission time of one small satellite in its data-receiving stations is given by simulateing its orbit and data-receiving stations on earth and the average data-transmission speed is calculated. The average data-transmission speed is taken as the lower limit of speed other different data-transmission speeds are selected and simulated respectively the rule of satellite memory used is found. Basing on the relationship between data-transmission speed and memory on board and considering the worst case the better speed arrived. In the end with different satellite tasks the appropriate speeds are selected which are verified to satisfy the mission. 2011 IEEE.

An advanced LEO satellite network model based on MPLS-TP (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Advanced Intelligence and Awareness Internet, AIAI 2010, October 23, 2010 - October 25, 2010, Beijing, China
作者: Zhang Y.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

LEO (Low Earth Orbit) satellite networks are capable of providing broadband access to end users in any part of the world. With the characteristics of high-speed movement and rapid dynamic topology of LEO satellites networking has always been one of the key issues in LEO satellite network. MPLS-TP (Multi-Protocol Label Switching-Transport Profile) is an excellent packet transport network (PTN) technology in terrestrial networks which can support multi-service and have perfect function of QoS (Quality of Service) OAM (Operation Administration Maintenance) and survivability. In this paper the characteristics of LEO satellite network and functional architecture of MPLS-TP are introduced. Then an advanced LEO satellite network model based on MPLS-TP (ALSN-M) is proposed which can guarantee a connection-oriented seamless data transmission. Furthermore topology and routing algorithms of proposed LEO satellite network model is analyzed. In the end the paper describes how to setup and remove a LSP (Label Switched Path) and how to maintain an exiting LSP when a handover happens.

Qualitative determination of the components of textile products using near infrared spectroscopy (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photonics and Optoelectronics, SOPO 2010, June 19, 2010 - June 21, 2010, Chengdu, China
作者: Chen X.; Chen X.; Chen X.; Wang D.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

In the paper A total of 40 pure or two-mixed textile weaves were prepared and classification of these samples was introduced using near infrared spectroscopy (NIRS) all textile samples are selected among four classes which are Cotton-Terylene Cotton-Polyurethane Cotton and Terylene according to theirs components. Near infrared diffuse reflectance spectra of the samples were collected Mahalanobis distance was used to discriminate the samples coupled with principle components analysis (PCA) the results showed that near infrared spectroscopy could determine which class one textile weave belongs to easily comparing with traditional methods. In addition the expectation of the further research on qualitative determination of textile products by NIR technology was discussed in the end of this paper. 2010 IEEE.

Carbon content detection methods' research in the AOD furnace (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Hui M.; Yuguo T.; Fangxiao C.

收藏 | 浏览/下载：24/0 | 提交时间：2013/03/25

In the process of smelting of iron alloy the carbon content has been a most important reference to the control of refining end. This article describes the commonly used off-line detection methods about carbon content of hot metal smelting furnace including chemical analysis and spectrometry and introduces the on-line measurement principle measuring devices and modeling based on the light's intensity value. 2010 IEEE.

Cluster-Based Cu-II-Azide Polymers: Synthesis, Structure, Magnetic Properties, and Effect of Polyamines on Crystal Structures 期刊论文 OAI收割
European Journal of Inorganic Chemistry, 2010, 期号: 3, 页码: 427-437
C. B. Tian, Z. H. Li, J. D. Lin, S. T. Wu, S. W. Du and P. Lin

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Copper Polynuclear compounds Magnetic properties Solid-state structures Amines end-on azido single-molecule magnets dinuclear copper(ii) complexes x-ray structures magnetostructural correlations s=1 chain behavior exchange ligands bridges

Mechanistic insight into alcohol oxidation mediated by an efficient green Cu-II-bipy catalyst with and without TEMPO by density functional methods 期刊论文 OAI收割
dalton transactions, 2010, 卷号: 39, 期号: 22, 页码: 5377-5387
Cheng L; Wang JP; Wang MY; Wu ZJ

收藏 | 浏览/下载：24/0 | 提交时间：2012/06/06

SELECTIVE AEROBIC OXIDATION O BOND-CLEAVAGE OXIDASE MODEL COMPLEXES GALACTOSE-OXIDASE ELECTRONIC-STRUCTURE END-ON COPPER(II) COMPLEXES THEORETICAL EVIDENCE 2-STATE REACTIVITY MONONUCLEAR COPPER

Mechanistic Insight into the Alcohol Oxidation Mediated by an Efficient Green [CuBr2(2,2 '-bipy)]-TEMPO Catalyst by Density Functional Method 期刊论文 OAI收割
inorganic chemistry, 2010, 卷号: 49, 期号: 20, 页码: 9392-9399
Cheng L; Wang JP; Wang MY; Wu ZJ

收藏 | 浏览/下载：31/0 | 提交时间：2012/04/25

O BOND-CLEAVAGE GALACTOSE-OXIDASE AEROBIC OXIDATION 2-STATE REACTIVITY END-ON THEORETICAL EVIDENCE ELECTRONIC-STRUCTURE MONONUCLEAR COPPER ACTIVE-SITE COMPOUND-I